\pgfkeys{/tikz/.cd,
	vertical factor/.initial=0.5,
	vertical factor/.get=\vertfactor,
	vertical factor/.store in=\vertfactor,
	start coordinate/.initial={

			0,\vertfactor}

	,
	sample line width/.initial=very thick,
	start coordinate/.initial ={

			another/. style={

					0,\vertfactor

				}}
	,
	sample line width/.get=\samplelinewidth,
	start coordinate/.initial={%
			0,\vertfactor}{%%
			something else}%
	,
}
